> I'm sure a lot of people will disagree with me, but I think reddit is basically the anti-twitter, and is a lot less toxic as a result.

That entirely depends where you are. The big frontpage-able/default subreddits are strongly moderated (with at least some pressure on the mods to behave), but other subreddits have ended up as self-reinforcing cesspools, especially when moderators collude to ban any opposing viewpoint (as happens with r/conservative). And then you have the subreddits that were explicitly created for toxic purposes (e.g. T_D, c..ntown, fatpeoplehate, and a boatload of others listed in https://en.wikipedia.org/wiki/Controversial_Reddit_communiti...).